Bobbin-winder.



A. BELZ.

BOBBIN WINDER.

APPLIGATION FILED APR. a, 1912.

Patented May 5, 1914.

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COLUMNA PLANDGRAPH co., wAsHlNuToN. D. c.

A. BBLZ.4

BOBBIN WINDER.

APPLIOATION FILED 11111.11, 1912.

` 1,095,372, Patented May 5, 1914.

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A. BELZ. h

BoBBIN WINDBR.

APPLIUATION FILED APR. 8, 1912. I 1,095,372. Patented May 5, 1914.

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AUGUST IBEIJZ, 0F UNTERGOLDACI-I, SWITZERLAND, ASSIGNOR TO THE FIRM OF HENRI LEVY, OF RORSCHACI-I, SWITZERLAND.

BOBBIN-WINDER.

Specification of Letters Patent.

Fatented May 5, 1914.

Application led April 8, 1912. Serial No. 689,227.

matic machine for winding bobbins for embroidery machines and consists in a device for automatically filling the bobbins in a recepta cle. The devices of this kind as hitherto proposed have the drawback that the bobbins are positively conducted, on at least a part of the co-urse they have to pass7 from the bobbin spindle to the receptacle to be lled. For this purpose pincers, spits, forks and pusher rods are applied by which the bobbins in order to be conveyed are seized, pierced.v picked up or pushed. The'bobbins are easily damagedthereby and with regard to the said conveying` means the receptacles and the means for seizing the bobbins are situated with relation to the bobbin spindle so that the handling of the thread is made difiicu'lt when inserting the thread in the means guiding it to the bobbin spindle. In order to avoid these drawbacks according to this invention the receptacle is provided at its admission opening in the well known manner with yielding closing members and arranged at some lateral distance from the bobbin spindle and means are provided for causing a relative movement between the receptacle and a bobbin bed arranged below the bobbin spindle. The bobbin may be led to the bobbin bed through al channel.v By' arranging the receptacle by the side 'of the bobbin spindle and the bobbin bed below the latter a free space is obtained infront of the bobbin spindle. The bobbins are free in the bobbin bed and they also loosely fall from the bobbin spindle into the same. Thus `the bobbins are prevented from being damaged and it is possible to arrangethe receptacle and the bobbinvbed at a considerable distance from the bobbin spindle, so that the movement of the thread can well be observedk and the thread can easily be Two illustra-tive embodiments of my invention are represented by way of example in the accompanying drawings, wherein:

Figure 1 is a side elevation of a iirst illustrative embodiment of the invention, Fig. 1a is a detail view, Fig. 2 is a plan view with parts in section, Fig. 8 is a front view, Fig. 4 shows parts of Fig. 3 in another working position. Fig. 5 shows parts in the same working position as in Fig. 3. Fig. 6 is a longitudinal section, showing a detail. Fig.

7 is a pla-n view of the same and Fig. 8 a section online A-A of Fig. 6. Fig. 9 is a front view showing parts of a second illustrative embodiment of the invention, Fig. 10 shows parts of Fig. 9 in another working position and Fig. 11 is a side elevation, showing parts of the same. l

Referring rstly to Figs. 1 to 8, 1 desig' nates the bobbin spindle which lin the well known manner is axially movable together with a slide 2 in the frame 3 of the machine. By means of the spring 5 the slide ispressed against a cam disk 5 mounted in the shaft 4. 6 designates a fixed blade of a pairof scissors, the second pivotally mounted blade 6 being connected by means of a spring 7 to an arm 9 which is mounted to rock about an axle 8. A lever 10 for removing the bobbin from the spindle, is mounted to rock about an axle 11 secured to the frame 3 of the machine. The lever 10 isv connected by a spring 12 to the arm 9. .The nave of the.

arm 9 is provided'with a projection 9 which is mounted to be engaged by a pin 13 secured to a disk 13 which rotates with the shaft 4 A member 14 of a clutch coupling is securedto the shaft 4 while the second member of the coupling is axially movable on a shaft 8O but prevented from turning about the latter. The shaft 30 is rotated from the main shaft B1 of the machine by meansof a worm 82 and a worm wheel 33. The coupling member 14 is' normally prevented from engaging the coupling member 14 and is actuated in a well known manner from a finger 34 which is pressed downward by the growing spool. Assoon as the spool vis wound to a certain diameter the coupling member 14 is actuated by the spring 35 to engage thercoupling member 14. By this means the shaft 4 is caused to rotate with lthe shaft 30 and the bobbin spindle is displaced in the direction of the arrow 15, Fig. 1. The spool which is wound in the last course of working is prevented by the fork 16 from moving with the spindle 1 and removed to the free end of the bobbin spindle, while the bobbin wound in the previous course of working is removed from the spindle by the fork 10 and falls in a doublecurved channel 17 which is secured to the frame of the machine by means of the axle 11. The bobbin remains for some time in the channel. As soon as the spindle has left the course of the blade 6 the thread is severed by means of the scissors 6, G. Before the revolution of the shaft 4 is completed the bobbin is moved in the opposite direction of' the arrow 15 into the position shown on the drawing, while the bobbin on the bobbin spindle end moves the bobbin in the upper part of the channel so that it slides into the lower part of the channel. The lower part of the channel 17 is provided with an opening 17 which, in the position of Figs. 1 and 2, is closed by a cross shaped bobbin bed 18. The bobbin bed is secured to the free end of a bracket 2O pivotally connected to a lever 19. The lever 19 is fixed to an axle 21 which is mounted to rock in the frame 3 of the machine. A torsion spring 22 is mounted on the axle 21, which spring is secured by one end to the axle 21 while the other end rests against the frame 3 of the machine. By the action of' the spring the free end of the arm 19 is pressed against a cam disk 23 secured to the shaft 4.

As is to be seen in Figs. G to 8 the opening 17 extends to the rear wall of the channel 17. Behind the opening of the wall there is arranged a small roller 24 mounted on the free end of a rectangularly bent rod 24 which is fixed to the machine frame. The bracket 2O is mounted to rock about a pin 25 fixed to the lever 19. A torsion spring 26 is mounted on the pin, one end of which spring is secured to the pin 25 while the other end rests against the bracket 20. The spring acts to turn the bracket backwardly, which movement is checked by the rod 24. The channel shaped receptacle is adapted to be applied in this form to machines for filling shuttles for embroidering machines. The receptacle, the admission opening of which is at the lower end, is exchangeably mounted on the machine. For this purpose the receptacle is provided with projections 27 which are held between a projection 28 of the machine frame 3 and a spring pressed slide 29. At the lower' end the four walls of the receptacle are not rigidly secured to each other, as is to be seen in Fig. 1. The front and rear walls of the receptacle are slit so that the lower end of the receptacle 27 comprises six strips. The receptacle is made of sheet-metal and the free end of the strips forming the front and rear wall of the receptacle are somewhat bent inwardly (Fie. 3) so that the bobbins inserted in the receptacle are prevented by the spring action of the wall from falling out of the receptacle. The receptacle is mounted at a small angle with the vertical plane through the bobbin spindle, the admission opening being situated somewhat higher than the channel 17 and behind the said plane.

The bobbins inserted in the upper part of the channel 17 are caused by the above de scribed movement of the bobbin spindle to fall through the channel 17 on the spindle bed, which during the fall of the bobbin is in the position shown in Figs. 1, 2 and 3. Each time when a spool falls on the bed the coupling member 14 has just been caused to engage the member 14 so that the shaft 4 rotates. By means of the cam disk 23 the. lever 19, the bracket 2O and the bobbin bed are raised. The head of the bracket provided with the bobbin bed projects somewhat from the rear wall of the channel 17 and is pressed by the spring 26 against the roller 24. The back of the bracket is formed so that when displacing the cam disk 23 from the posit-ion shown in Fig. 3 into the position of Fig. 4 the bracket is raised into the position shown in the latter figure. The head of the bracket and the bobbin on the bobbin bed are inserted herewith in the opening at the lower end of theJ receptacle. `When inserting the bobbin, the curved ends of the strips 27 yield, but are closed again when the bobbin has passed the curved part of the strips. By the following movement of the cam disk 23 the bracket is lowered again attaining the normal position shown in Fig. 3. The bobbin introduced in the receptacle is prevented by the strips 27 from falling down.

The above described action is repeated at each course of working of' the machine whereby a receptacle on the machineisiilled.

In the illustrative embodiment shown in Figs. 9 to 11 the bobbins are inserted in the receptacle by moving the latter toward the bobbin bed. By using a. fixed bobbin bed the bobbin remains in rest until the point of time in which the bobbin is inserted so that the bobbin is prevented from being displaced out of its normal position before it is seized by the mouth of the receptacle. The bobbin spindle 1 projects into the channel 17 which is mounted on the frame 3 of the machine. The horizontal upper part of the channel is joined by an inclined. portion. A bobbin-bed 18 provided with lateral projections 18 is arranged in front of the lower channel end and mounted on a support 36 which rests on the bed-plate 37 of the machine. An arm 38 is pivotally connected by one end to the support 36, which arm carries by its other end a plate 39 and a part 40 provided with a. female thread. The receptacle 27 is exchangeably mounted on the plate 39. The lower end of the receptacle is slit forming thus strips 41 and 42, the strip 41 being bent somewhat inwardly. The plate 39 is provided at its lower end with an inclined portion 43 and a project-ion 44. The plate is pressed by a spring 45 against a roller 46 mounted on the support 36. A rod 47 is screwed by one end int-o the part 40 and by the other end into the part 48, which is pivotally mounted on a crank pin 49 of the shaft 4, which is intermittently rotated in the described manner. The rod 47 carries a plate 50 fixedly attached to it which inthe position of rest (Fig. 1) closes the bobbin bed 18 on the opposite side of the channel 17. When the device is in the position of rest, the receptacle is in its topmost` position. In this position the projection 44 of the plate 39 is pressed against the roller 46 and the admission opening of the receptacle is situated by the side of the bobbin bed 18. After a completed bobbin 51 is removed from the bobbin spindle 1 and has reached the bobbin bed 18 by falling through the channel 17 the shaft 4 is revolved. By this the plate 39 is lowered so that its inclined portion 43 is moved on the roller 46 and the receptacle while being lowered is moved by its lower end over the bobbin 51 in the bobbin bed 18. After the inclined portion 43 has passed the roller 46, the receptacle is moved downward so that the strips 41 are pushed over the bobbin. In the following 'upward movement of the receptacle the bobbin is prevented by the inwardly curved portions of the strips 41 from falling out o-f the receptacle. When the shaft 4 has completed one revolution whereby the plate 39 and the receptacle 27 are moved into their initial positions, the movement of the shaft is stopped until the next bobbin is removed from the bobbin spindle whereafter the de-y scribed operation is repeated. The rod 47 could also be driven from the shaft by means of a cam disk instead of the crank-drive shown.

I claim: 1. In automatic machines for winding bobbins for embroidering machines,the combination with a receptacle, of a device for bobbins for embroidering machines, the combination with a receptacle, of a device for filling the bobbins into the receptacle comprising a stripper, a cross shaped bed arranged in a lower plane than the bobbin spindle freely supporting a wound up bobbin delivered to said bed by gravity imiiiediately after its stripping off from the spin-- dle, a stationary double-curved channel providedwith a recess for the bed and leading the bobbin from the spindle to said bed, and means causing a relative movement between the bobbin bed and the receptacle to transfer the bobbin resting on the bed directly into said receptacle arranged at one side of the bobbin spindle.

3. In automatic machines for winding bobbins for embroidering machines a device for filling the bobbins into a receptacle provided with an admission opening at its lower end, comprising a fixed bobbin bed below the bobbin spindle, means for intermittently moving the receptacle to and fro toward the bobbin bed` the receptacle with its admission opening being located in its normal position at some lateral distance from a vertical plane through the bobbin spindle.

4. In automatic machines for winding bobbins for einbroidering machines a device for filling the bobbins into a receptacle provided with an admission opening at its lower end, comprising a fixed bobbin bed below the bobbin spindle, means for intermittently moving the receptacle to and fro toward the bobbin bed, a channel leading the bobbin from the spindle to the bobbin bed, the receptacle with its admission open ing being located in its normal position at some lateral distance from a vertical plane through the bobbin spindle.

5. In automatic machines for winding bobbins for emb-roidering machines a device for filling the bobbins into a receptacle provided with an admission opening at its lower end` comprising a fixed bobbin bed below the bobbin spindle, means for intermittently moving the receptacle to and fro toward the bobbin bed. yielding parts at the admission opening of the receptacle, the receptacle with its admission opening being located in its normal position at some lateral distance from a vertical Vplane through the bobbin spindle.

6. In automatic machines for winding bobbins for embroidering machines a device for filling the bobbins into a. receptacle provided with an admission opening at its lower end. comprising a fixed bobbin bed below the lbobbin spindle, means for intermittently moving the receptacle to and fro toward the bobbin bed, a channel leading the bobbin from the spindle to the bobbin bed, yielding parts at the admission opening of the receptecla, the receptacle with its admission opening being located in its noinial position at some lateral distance from a Vertical plane through the bobhin spindle.

7. in automatic machines for winding hobhins for einboidering machines a` device Vfor Iilling the bobbins into a receptacle provided with an admission opening at its lower end comprising a fixed bobbin bed below the hobhin spindle, a plate provided with an inclined portion and carrying the receptacle, a. i'ollei', ineans for pressing the plate against the roller, means for intermittently imparting a reciprocating; movement to the plate, the ieceptacle wit its admission opening being located in its normal position at some lateral distance from a vertical plane through the hobhin spindle.

n testimony whereof l have aiiixed my signature in presence of two witnesses.

AUGUST BELZ.

Witnesses RANDALL ATKINSON, EUGENE NOBEL.

Copies of this patent :may be obtained 101` five cents each, by addressing the Commissioner of IPatents, Washington, D. C. 

